Replace the 20 year old water heater. It's past its life span. They now make more energy effecient water heaters which will lower your utility bill. Put a blanket around the new water heater while you're at it.
A light period is a menstrual cycle that is shorter and/or lighter than a woman's regular period. Women should familiarize themselves with their menstrual cycle, how many pads or tampons they use, and how long their periods last to quickly detect any changes in their periods.
Reflected heat from buildings or other surfaces is a deterrent to plant growth. Light duration is the amount of time that a plant is exposed to sunlight. Most plants are unable to handle continuous sunlight 24 hours a day. Twelve to 14 hours of light per day is a healthy light duration for most species.